Tomás lives in a very small Czech town and is a nature lover and a birdwatcher. He struggles to keep the forests he loves clean and constantly fights his "archenemy" whose sister and Tomás's classmate is secretly in love with him.
The director of films for kids called Bonzurka together with her loyal assistants Drahuska and Honza are looking for the actors for a new movie "The Knee". Children for this movie should not be afraid and shy and they must have talent for acting. Thus the scouting is quite difficult. The most difficult is to find an actress for a main character who lost her hair after a serious illness and now has to spent the whole holiday in the countryside with a bald head resembling a knee. Although the makeup artist does his best an artificial baldness does not solve anything. From the selected little girls only the self-assertive Rosemary has the guts to let her long hair to be cut and shave off her head.
Children from the village Bystrá are awaiting a nice and thrilling weekend. On Saturday they will play the championship football match with the nonresident boys from the village Skuhrov, on Sunday there will be the funfair with merry-go-round, swings and stalls with dainties. The members of the family of the merry-go-round man are brother and sister Janek and Zaneta Mareks whom the children have known since the last year. At that time Zaneta made friends with girls and Janek, an excellent football player, has been a welcome support of the football club.
Sixth-grade pupil Katka daydreams during a math class about being Snow White and being freed by a prince who looks very much like Dzery from the eighth grade. Katka, her girl friends Lenka and Martina, and her fellow-pupils Franta, Joska and freckled Vrabcák, have spent five years going to the same little one-class school in their home mountain village of Pastvina. Their kind teacher Smetácek was very understanding about their games and fantasies, but he didn't teach them much about arithmetic. They are now laughed at for their ignorance by the strict Bidlo, their new teacher at the near-by little town. As he does every year, Smetácek is preparing a theatre performance with the local children. Katka suggests the fairytale about Snow White
In the village cemetery, the funeral of a married couple - victims of a car crash - is ending. The relatives unscrupulously take away the facilities of the dead people's little cottage, totally ignorant of the fate of eight-year old Ruda, whom the childless couple took from a children's home and adopted. Fortunately, an elderly lonesome uncle named Tony remains in the empty cottage and decides to take care of the boy, nicknamed Münchie after Baron Münchhausen for his wild imagination.
